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EXPERT WW rev.12
EXPERT WW
6.2.4. 0-10V Ventilation Outputs
The controller has a 0-10V output that can ei-
ther be used to control air inlets or fans. To run
this output, the controller refers to the average
temperature reading of the probes that are being
assigned to this output (sec. 4.7.3).
This section explains how 0-10V ventilation
outputs work.
0-10V Mode: Automatic / Manual
You can manually control the intensity of a
0-10V output by using the manual control
mode. While this mode is used, the control-
ler stops controlling the output and lets you
choose the intensity of the output.
• If the 0-10V fans are used in mini-
mum ventilation:
The 0-10V fans start at running at minimum
speed when the average temperature of the
output gets 0.5°F (0.3°C) higher than the
“
Stop Temperature”
. They then keep running at
minimum speed until the
“Start Temperature”
is reached. Once it is reached, the fans then
start increasing in speed as the temperature
rises. They finally reach their maximum inten-
sity when the temperature reaches the
“Max
Output at”
parameter setting.
Enable the
“0-10V For Min Vent?”
parameter
in section 4.5 to use the 0-10V fan output
this way.
Max
Min
OFF
Intensity
0-10V Ventilation
Output for Min.Vent.
T°
Start T°
Stop T°
Max
Run T°
0.5°F
In addition, if 0-10V fans are used in minimum
ventilation, these fans can also be used in
clean mode. Refer to the Clean Mode chapter
of this manual for further information (see
section 4.10)
1. Select:
Main menu
Start/Stop*
0-10V**
* A password may be required to access this menu.
** This menu is accessible if a 0-10V ventilation output
is enabled in the Installation Setup (section 4.5).
0-10V Output – Ventilation
Use to navigate
Mode
Automatic
Current output
100 %
Start temp.
70.0 °F
Min
40
Max
100
Max Output at
72.0 °F
Stop at
69.5 °F
2. Set the following parameters:
Mode —
Set the operating mode of the 0-10V
output: select
“Automatic”
if you want the con-
troller to control the output or select
“Manual”
to
specify the intensity of the output yourself.
Current output —
This is the current intensity
of the output. This intensity can be modified
while the manual mode is enabled above.
Start temperature —
Set the start tempera-
ture to the desired value. This temperature
can be set as a fix value (absolute) or it can be
related to the set point: this means that when
the set point changes, the start temperature
is adjusted by the same amount. *
Refer to
section 4.5 to specify if the start temperature of the
0-10V follows the set point or not.
Minimum & max speeds —
Set the minimum
and maximum speeds of the 0-10V output.
The maximum speed must be greater than
the minimum speed.
Maximum output at —
Set the temperature at
which the output reaches its maximum speed
(this parameter must be set to a greater value
than the start temperature).
Stop at —
This is the temperature below
which the 0-10V output stops.
• If the 0-10V fans are not used in
min ventilation:
The 0-10V fans start at running at minimum
speed when the average temperature of the
output reaches the
“Start Temperature”
. The
fans then increase in speed as the tempera-
ture rises and finally reach their maximum
intensity when the temperature reaches the
“Max Output at”
parameter setting.
Disable the
“0-10V For Min Vent?”
parameter
in section 4.5 to use the 0-10V fan output
this way.
Max
Min
OFF
Intensity
0-10V Ventilation
Output (No Min.Vent)
T°
Start T°
Stop T°
Max
Run T°
